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A Network Side Rescue Method for Service Abnormality in the Third Generation Communication Network

A communication network and service exception technology, applied in the field of service exception rescue, can solve the problems of low burst quality of dedicated channels, no signal detected, no transmission module received, etc., to achieve the effect of improving the system call drop rate index

Active Publication Date: 2011-12-21
NANJING ZHONGXING SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The terminal detects that the burst quality of the dedicated channel is continuously lower than a specific value within 160ms;
[0007] 2. The terminal does not detect that the signal quality of a special burst is higher than a specific value within 160ms;
[0008] 3. The terminal did not receive any transmission module with correct CRC within 160ms

Method used

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  • A Network Side Rescue Method for Service Abnormality in the Third Generation Communication Network
  • A Network Side Rescue Method for Service Abnormality in the Third Generation Communication Network

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0029] When the downlink communication is normal, the Node B detects an abnormality in the uplink, and judges that the number of uplink out-of-synchronization meets the condition for reporting radio link failure, the Node B reports a radio link failure indication to the radio network controller.

[0030] After receiving the wireless link failure indication, the radio network controller sends a radio link activation command to the node B, and in the radio link activation command, the radio link identifier fills in the radio link corresponding to the reported radio link failure. The activation type is filled in as deactivation. The deactivation can be synchronous deactivation or asynchronous deactivation. If it is filled in as the synchronous deactivation, CFN needs to be specified; or the radio network controller sends a wireless link to Node B. A path deletion request, the radio link identifier in the radio link deletion request is filled with the radio link identifier correspo...

specific Embodiment 2

[0036] The network-side algorithm determines that the terminal needs to initiate a handover process based on the measurement report reported by the terminal, allocates physical resources on the new cell, notifies the terminal through a physical channel reconfiguration message, and sets a waiting timer to wait for the terminal to report a physical channel reconfiguration completion message. Since the network downlink interference is relatively serious at this time, the terminal cannot correctly identify the physical channel reconfiguration message delivered by the network side.

[0037] The waiting timer on the network side waits for the terminal to report the physical channel reconfiguration completion message to time out, and sends a radio link activation command or a radio link deletion request for the old and new radio links to Node B, and the radio link activation command or In the wireless link deletion request, the wireless link identifiers are filled in as the new and ol...

specific Embodiment 3

[0043] The RLC layer of the radio network controller meets the reset conditions, sends an RLC reset instruction to the terminal, does not receive a terminal reset response, and reaches the maximum number of times set by the system, and the radio network controller sends a radio link activation command for the current radio link to Node B or radio link deletion request. In the wireless link activation command or wireless link deletion request, the wireless link ID is filled in as the current wireless link ID, and the activation type in the activation command is filled in as deactivation. Synchronous deactivation and asynchronous deactivation can be used. If it is filled in as synchronous To deactivate, you need to specify the CFN and set the waiting timer.

[0044] The Node B receives the radio link activation command or the radio link deletion request, and instructs the Node B to stop downlink transmission power.

[0045] The terminal meets the radio link out-of-sync conditio...

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Abstract

The present invention discloses a network-side rescue method for service abnormality in a third-generation communication network. The steps of the rescue method include: after the wireless network controller judges that the wireless link is abnormal, the node B stops the downlink power transmission, and makes the terminal in the downlink direction If the wireless link fails, actively search for the cell and report the cell update message to the radio network controller; the radio network controller receives the cell update message, deletes the wireless link, establishes a new wireless link, and sends a cell update confirmation to the terminal The message enables the terminal to synchronize on the new wireless link, and sends physical channel reconfiguration, transport channel reconfiguration, and radio bearer reconfiguration completion messages to the network side. According to the feature that the terminal actively reports the cell update to the network side when the downlink is out of sync, the present invention saves the call drop when the wireless environment or the network is abnormal, so that the user does not need to re-initiate the call operation, and not only improves the call drop rate index of the system , and bring convenience to users.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a service abnormality rescue method in the third generation (3rd Generation, 3G). Background technique [0002] At present, with the continuous development of communication technology, the demand for data services continues to expand, and the number of users continues to increase. Due to abnormalities in the wireless environment or on the network side, such as large interference at the same frequency point in adjacent cells, and poor carrier-to-interference ratio caused by terminals moving to weak coverage areas, there are Fast fading, etc., will cause the network side to detect uplink out-of-synchronization, radio link control (RLC) layer abnormalities, air interface signaling terminal no response, etc., which may cause inconsistencies in the data configurations of the network side and the terminal side, and normal operation cannot be performed. In the follow-up communication...

Claims

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Application Information

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IPC IPC(8): H04W8/24H04W24/04H04W76/04
Inventor 李廉范毅
Owner NANJING ZHONGXING SOFTWARE
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